Results 131 to 140 of about 65,677 (256)

Incorporating Non‐Seismicity Precursors Into Earthquake Probabilistic Forecasting Model

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract To test whether geophysical anomalies contribute to earthquake forecasts beyond the inherent clustering effects in seismicity, we develop a self and external excitation point‐process model by incorporating anomalies into the temporal Epidemic‐Type Aftershock Sequence (ETAS) model.
Yiqun Zhang, Peng Han, Hongyan Chen, Chengxiang Zhan, Yuanyuan Niu, Jiancang Zhuang, Kaiguang Zhu   +6 more
wiley   +1 more source

Small-scale fluctuations in the HF-Doppler signals of the F-region ionosphere over central Japan.

, 1980
Takashi Okuzawa
openalex   +2 more sources

Satellite observations of ionospheric disturbances which followed the Chelyabinsk meteorite passage [PDF]

, 2013
Л. Ф. Черногор, Y. B. Milovanov, V. N. Fedorenko, A. M. Tsymbal   +3 more
openalex   +1 more source

A Qualitative Study of the Ionospheric Weak Response to Super Geomagnetic Storms [PDF]

, 2020
Haimeng Li, Zhou Chen, Lianqi Xie, Fan Li   +3 more
openalex   +1 more source

MMS Observations of a Compressed, Strongly Driven Magnetopause During the 2024 Mother's Day Storm

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract From 10 to 12 May 2024, a series of coronal mass ejections led to one of the strongest geomagnetic storms of the century, referred to as the Mother's Day or Gannon Storm. MMS's position on the dayside magnetosphere on 11 May provided observations of a strongly driven and compressed ∼7RE $\left(\sim 7\ {R}_{E}\right)$ reconnecting magnetopause.
Jason M. H. Beedle, Kevin J. Genestreti, Jason R. Shuster, Rachel C. Rice, Stephen A. Fuselier, Tai D. Phan, Marit Øieroset, Weijie Sun, Harsha Gurram, Li‐Jen Chen, Karlheinz J. Trattner, Roman G. Gomez, Brandon Burkholder, Andy Marshall, Daniel J. Gershman, Sarah K. Vines, Martin Lindberg, Kelly Cantwell, Jim L. Burch, Roy B. Torbert   +19 more
wiley   +1 more source

Equipment for the Measurement of Changes of the Phase Path of Ionospheric Echoes

, 1954
Hiroo Yuhara, T. Koseki, Y. Aono
openalex   +2 more sources

Detection of High‐Latitude Magnetic Reconnection Between the Northward Interplanetary Magnetic Field and a Closed Magnetic Field Wedge Linked to a Transpolar Arc

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Transpolar arcs (TPAs) describe a subset of auroral emissions observed poleward of the Earth's main auroral ovals when the interplanetary magnetic field (IMF) is northward. These emissions are thought to align with a “wedge” of closed magnetic field lines extending to the high‐latitude boundary of the Earth's magnetosphere, where they are ...
Nawapat Kaweeyanun, Robert C. Fear, Betty S. Lanchester, Daniel K. Whiter, Imogen L. Gingell, Andrew N. Fazakerley, Iannis Dandouras, Stephen B. Mende, Larry J. Paxton   +8 more
wiley   +1 more source

Estimation of Faraday rotation and polarization loss based on 3D electron density for space surveillance radar. [PDF]

Sci Rep
Lee DH, Yang J, Park YB.
europepmc   +1 more source

Simulated equinoctial asymmetry of the ionospheric vertical plasma drifts [PDF]

, 2011
Zhipeng Ren, Weixing Wan, Jiangang Xiong, Libo Liu   +3 more
openalex   +1 more source

Unraveling Jupiter's Enigmatic Ionosphere: Evidence of Magnetically‐Controlled Wind‐Driven Dynamics

Geophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract This study investigates the non‐solar trends and variability in Jupiter's sub‐auroral ionosphere from Pioneer, Voyager, Galileo, and Juno radio occultation electron density profiles. We show that these data are correlated with magnetic field geometry via primarily westward and equatorward thermospheric neutral winds driving field‐aligned ...
O. Agiwal, L. Moore, T. Bloch, D. Coffin, M. Felici, K. L. Knowles, W. S. Kurth, K. Mohamed, I. Mueller‐Wodarg, K. Roberts, T. Stallard, P. Withers   +11 more
wiley   +1 more source